Query Monitor
Healthy: maintained, last release 27 Oct 2026, 21 releases in 24 months, no unpatched vulnerabilities.
| Ownership | 100 |
|---|---|
| Maintenance | 100 |
| Security | 90 |
| Support | 70 |
| Reputation | 85 |
Quick answers
- Is Query Monitor still maintained?
- Yes. Last release 27 Oct 2026, 21 releases in the last 24 months. 27 Oct 2026 · wordpress.org
- Who owns Query Monitor, and has it changed hands?
- No change recorded. Main committer johnbillion since Nov 2013. 4 Nov 2026 · SVN log
- Was Query Monitor removed from wordpress.org?
- No. Listed on wordpress.org as of 4 Nov 2026. 4 Nov 2026 · wordpress.org
- Is Query Monitor safe?
- 1 known vulnerability, fixed (latest in 3.20.4). Not on the exploited list. 30 Mar 2026 · Wordfence Intelligence
- Is the latest Query Monitor update safe to install?
- No ownership change before 4.1.1. No one-star spike after it. 27 Oct 2026 · Release history
Active signals
Facts we detected, with links to the source.
No open risk signals. Signals appear here when we detect an ownership change, closure, vulnerability or decline.
Ownership timeline
Who commits to the plugin's code on wordpress.org, over time.
| johnbillion | 19 Nov 2013 to 27 Oct 2026, 239 commits |
|---|
1 committer recorded. No ownership change since 2009.
Maintenance
- Last release
- 8 days ago
- Releases, 24 months
- 21
- Tested up to
- 7.1 current
- Requires PHP
- 7.4 supported 8.2+
| Q1 2024 | 0 |
|---|---|
| Q2 2024 | 4 |
| Q3 2024 | 1 |
| Q4 2024 | 1 |
| Q1 2025 | 2 |
| Q2 2025 | 1 |
| Q3 2025 | 2 |
| Q4 2025 | 2 |
| Q1 2026 | 3 |
| Q2 2026 | 8 |
| Q3 2026 | 0 |
| Q4 2026 | 2 |
Last release 27 Oct 2026. Tested with WordPress 7.1 (current).
Reputation
Last 90 days: 5.0 (2 reviews). Lifetime: 4.9.
| Q2 2024 | 5.0 |
|---|---|
| Q3 2024 | 5.0 |
| Q4 2024 | 5.0 |
| Q1 2025 | 3.7 |
| Q2 2025 | 5.0 |
| Q3 2025 | 5.0 |
| Q4 2025 | 5.0 |
| Q1 2026 | 5.0 |
| Q2 2026 | 5.0 |
| Q3 2026 | 5.0 |
| Q4 2026 | 5.0 |
Average rating stayed at 5.0 between Q2 2024 and Q4 2026.
| 5 star | 455 |
|---|---|
| 4 star | 3 |
| 3 star | 2 |
| 2 star | 0 |
| 1 star | 10 |
- Totally Crashed Our Backend · 1 star · 4 Feb 2025
Security record
1 vulnerability in 24 months, patched (latest fixed in 3.20.4).
Show 1 patched vulnerability
| Published | Issue | CVSS | Affected | Fixed in | Days to patch |
|---|---|---|---|---|---|
| 30 Mar 2026 | Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI | 7.2 | <= 3.20.3 | 3.20.4 | Patched before disclosure |
Sources: Wordfence Intelligence, CISA Known Exploited Vulnerabilities, readme changelogs.
Support
25% of 4 support threads resolved in the last 2 months.
Momentum
200,000+ active installs. History builds with each weekly snapshot.
| 4 May 2026 | 38,111 |
|---|---|
| 11 May 2026 | 71,771 |
| 18 May 2026 | 78,108 |
| 25 May 2026 | 69,521 |
| 1 Jun 2026 | 68,438 |
| 8 Jun 2026 | 68,133 |
| 15 Jun 2026 | 83,733 |
| 22 Jun 2026 | 159,232 |
| 29 Jun 2026 | 88,040 |
| 6 Jul 2026 | 85,607 |
| 13 Jul 2026 | 76,081 |
| 20 Jul 2026 | 77,901 |
| 27 Jul 2026 | 73,870 |
| 3 Aug 2026 | 74,406 |
| 10 Aug 2026 | 71,886 |
| 17 Aug 2026 | 70,717 |
| 24 Aug 2026 | 72,444 |
| 31 Aug 2026 | 71,314 |
| 7 Sep 2026 | 70,209 |
| 14 Sep 2026 | 70,157 |
| 21 Sep 2026 | 71,006 |
| 28 Sep 2026 | 70,759 |
| 5 Oct 2026 | 73,968 |
| 12 Oct 2026 | 72,172 |
| 19 Oct 2026 | 82,212 |
| 26 Oct 2026 | 233,878 |
| 2 Nov 2026 | 19,628 |
Weekly downloads over the last 4 weeks are 27% above the 27-week average.
Healthier alternatives
Same job, rated Healthy, higher Canary Score and at least 10,000 installs. Never sponsored.
Facts
| Version | 4.1.1 |
|---|---|
| Author | John Blackbourn |
| Added | 19 Nov 2013 |
| Last updated | 27 Oct 2026 |
| Active installs | 200,000+ |
| Requires WordPress | 6.3 |
| Tested up to | 7.1.4 |
| Requires PHP | 7.4 |
| Category | Developer Tools & Customization > Debugging & Development Tools |
| Tags | debug, debug bar, development, performance, query monitor |
Other plugins by this author: User Switching
Questions
Is Query Monitor still maintained?
Yes. Last release 27 Oct 2026, 21 releases in the last 24 months.
Who owns Query Monitor, and has it changed hands?
No change recorded. Main committer johnbillion since Nov 2013.
Was Query Monitor removed from wordpress.org?
No. Listed on wordpress.org as of 4 Nov 2026.
Is Query Monitor safe?
1 known vulnerability, fixed (latest in 3.20.4). Not on the exploited list.
Is the latest Query Monitor update safe to install?
No ownership change before 4.1.1. No one-star spike after it.